Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Haptista
Haptophyta (Haptophytes)
Prymnesiophyceae
Zygodiscales

Pontosphaeraceae (23070332)

Children (3 direct children, 37 direct and indirect children):

Discolithina (tree size 2)

Pontosphaera (tree size 27)

Scyphosphaera (tree size 5)